* {
    padding: 0;
    margin: 0;
}

a,
li {
    text-decoration: none;
    list-style: none;
}

.content {
    position: relative;
    width: 100%;
    height: 392px;
    margin: auto;
    overflow: hidden;
    background: skyblue;
}

.content .arrow-l {
    display: none;
    position: absolute;
    top: 50%;
    left: 0;
    background: #eaeaea;
    width: 30px;
    height: 50px;
    line-height: 50px;
    font-size: 40px;
    opacity: .3;
    z-index: 999;
}

.content .arrow-r {
    display: none;
    position: absolute;
    top: 50%;
    right: 0;
    background: #eaeaea;
    width: 30px;
    height: 50px;
    line-height: 50px;
    font-size: 40px;
    opacity: .3;
    z-index: 999;
}

.content ul {
    position: relative;
    left: 0;
    top: 0;
    width: 1000%;
}

.content ul li {
    float: left;
}

.content ul li img {
    width: 600px;
    height: 500px;
}

.content ol {
    width: 35%;
    height: 18px;
    position: absolute;
    right: 35%;
    bottom: 3px;
}

.content ol li {
    width: 13px;
    height: 13px;
    margin-right: 8px;
    border-radius: 50%;
    border: 1px solid white;
    float: left;
}

.content ol .current {
    background: white;
}